Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1a7cadc777b4d8e…

MALICIOUS

PDF

34.5 KB Created: 2021-07-05 07:34:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 4f37fa9636973dc1a0fe2f57134f14be SHA-1: d5c46373d504b78a13cd2b4c46c1c1e80018dc3e SHA-256: d1a7cadc777b4d8ec9b95c0797652f1410a4c216e20989ff2941cd35dfce698a
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a lure for game hacks and free currency, directing users to a malicious URL. The presence of a 'password-protected archive' heuristic suggests a potential multi-stage attack where the user is instructed to download an archive, possibly containing a payload. The ML classifier strongly indicates maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.tw/app/406889139/coin-master-free-coins-link-game-hack PDF link annotation
    • http://library.forda-mof.org/katalog/repository/coin-master-hack-2021-link_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-minecraft-gift-card_GM479516143.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/best-free-robux-sites_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-guide-to-free-spins-and-rewards_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/adopte-me-hack-project-alpha-300-roblox_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-hack-cheat-generator-coins-and-spins-unlimited_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/roblox-hack-game_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/moonactive-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/roblox-hack-for-free-robux-without-veirfication-required_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/spin-coin-master_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-haktuts_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-hack-version-download-2021-ios_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/how-to-get-free-robux-hack-by-stealing-information_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-minecraft-account-and-password-generator_GM479516143.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/how-to-get-minecraft-for-free-on-xbox_GM479516143.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/what-is-a-minecraft-client_GM479516143.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-gameplay_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-robux-com_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/roblox-hack-konsol_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000312a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x312A 22852 bytes
SHA-256: 9298561f755291c1d757b4732a10d38d09cfad6c9d7fbb66644a777e695789f3
font_01_sfnt_off000064a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64A5 18168 bytes
SHA-256: 7e3864b359ae4e20f98f554aea3d5366a72fce57ca0fb6405be6acd76bdcbaac

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